Smoke filter apparatus



FIG. 1 is a right side elevation view of a smoke filter apparatus;

FIG. 2 is a back side elevation view thereof;

FIG. 3 is a front side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a perspective view thereof; and,

FIG. 6 is a bottom plan view thereof.

The dash-dash broken lines illustrate portions of the smoke filter apparatus that form no part of the claimed design. 

CLAIM An ornamental design for a smoke filter apparatus, as shown and described. 